Jim:
Since I'm still not sure how the coach is going to perform on the grades, we decided to go up 285 to Klines Korners and then into Albuquerque. If I don't find the problem in the morning, we'll nurse it in and go to Stewart & Stevenson to have it checked and eliminate all the fault codes. I'm going to check all the connections of the DDEC electronic control unit for the engine. I have one fault code saying there is a failure at the ECM. Unfortunately, I can't find the ECM but I'll try the DDEC. I'll call Blue Bird in the morning and see where the ECM is.
By the way, we are staying at the Bottomless Lake State Park at Roswell. Pretty nice little campground. Water and electric is $14.00.